Wireless charging device

ABSTRACT

According to various embodiments, a wireless charging device can comprise: a first housing, which includes a first surface facing a first direction and a second surface facing a second direction opposite to the first direction, and includes at least one hole; a second housing arranged on the second surface of the first housing in the second direction; a coil unit arranged between the first housing and the second housing and configured to transmit power to an external device; a shielding member arranged adjacent to the coil unit and including at least one hole; and a fan arranged adjacent to the coil unit and configured to rotate.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a 371 of International Application No.PCT/KR2017/007931 filed on Jul. 24, 2017, which claims priority toKorean Patent Application No. 10-2016-0101754 filed on Aug. 10, 2016,the disclosures of which are herein incorporated by reference in theirentirety.

BACKGROUND 1. Field

Various exemplary embodiments of the present disclosure relate to awireless charging device.

2. Description of Related Art

A wireless charging device can convert electric energy in anelectromagnetic wave form, to wirelessly forward power to an externaldevice without a transmission line. A wireless charging scheme can bevarious such as a magnetic induction scheme, a self resonance scheme orthe like.

At wireless charging, a heat can be generated due to efficiencydeterioration, because arrangement alignment is not made betweeninternal parts of the wireless charging device. The heat generated inthe wireless charging device can be cooled in an air forced convectionscheme using a fan.

In a cooling of a forced convection scheme using a fan of a wirelesscharging device, there can be limits in a cooling efficiency, because achannel of air introduced into the wireless charging device isrestrictive. In response to the cooling of the wireless charging devicenot being made smoothly, it can bring about limitation in a usability.

Various embodiments of the present disclosure may provide a wirelesscharging device capable of decreasing heat generation that occurs atwireless charging. Also, various embodiments of the present disclosuremay provide a wireless charging device capable of improving the coolingefficiency.

SUMMARY

According to various embodiments, a wireless charging device may includea first housing, which includes a first surface facing a first directionand a second surface facing a second direction opposite to the firstdirection, and includes at least one hole; a second housing arranged onthe second surface of the first housing in the second direction; a coilunit arranged between the first housing and the second housing, andconfigured to transmit power to an external device; a shielding memberarranged adjacent to the coil unit, and including at least one hole; anda fan arranged adjacent to the coil unit and configured to rotate.

Various embodiments of the present disclosure may provide a wirelesscharging device capable of decreasing heat generation that occurs atwireless charging. Also, various embodiments of the present disclosuremay provide a wireless charging device capable of securing air channelsin various directions, to improve a cooling efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A illustrates a perspective view of a wireless charging device ofvarious embodiments of the present disclosure.

FIG. 1B illustrates a perspective view of a wireless charging device ofvarious embodiments of the present disclosure.

FIG. 1C illustrates a perspective view of a wireless charging device ofvarious embodiments of the present disclosure.

FIG. 1D illustrates an example view showing a state in which an externaldevice is mounted in a wireless charging device of various embodimentsof the present disclosure.

FIG. 1E illustrates an example view showing a state in which an externaldevice is mounted in a wireless charging device of various embodimentsof the present disclosure.

FIG. 1F illustrates an example view showing a state in which an externaldevice is mounted in a wireless charging device of various embodimentsof the present disclosure.

FIG. 1G illustrates an example view showing a state in which an externaldevice is mounted in a wireless charging device of various embodimentsof the present disclosure.

FIG. 1H illustrates an example view showing a state in which an externaldevice is mounted in a wireless charging device of various embodimentsof the present disclosure.

FIG. 2A and FIG. 2B illustrate exploded perspective views of a wirelesscharging device of various embodiments.

FIG. 3A and FIG. 3B illustrate sectional views of a wireless chargingdevice of various embodiments.

FIG. 4A, FIG. 4B, and FIG. 4C illustrate front views of shieldingmembers included in a wireless charging device of various embodiments.

FIG. 5A illustrates a perspective view of a bracket included in awireless charging device of various embodiments.

FIG. 5B illustrates a sectional perspective view showing an installationstructure of a bracket and a fan included in a wireless charging deviceof various embodiments.

FIG. 6A illustrates a perspective view of a guide included in a wirelesscharging device of various embodiments.

FIG. 6B illustrates a sectional perspective view showing an installationstructure of a guide included in a wireless charging device of variousembodiments.

FIG. 6C illustrates a sectional view showing an installation structureof a guide included in a wireless charging device of variousembodiments.

DETAILED DESCRIPTION

Various embodiments of the present disclosure are mentioned below withreference to the accompanying drawings. However, these do not intend tolimit the present disclosure to a specific embodiment form, and itshould be understood to include various modifications, equivalentsand/or alternatives of various embodiments of the present disclosure. Inrelation to a description of the drawing, like reference symbols may beused for like components.

In the present document, the expressions “have”, “may have”, “comprise”,“may comprise”, etc. indicate the existence of a corresponding feature(e.g., a numeral value, a function, an operation, or a component such asa part, etc.), and do not exclude the existence of an additionalfeature.

In the present document, the expression “A or B”, “at least one of Aor/and B”, “one or more of A or/and B” or the like may include allavailable combinations of items enumerated together. For example, “A orB”, “at least one of A and B”, or “at least one of A or B” may denoteall of the cases of (1) including at least one A, (2) including at leastone B, or (3) including all of at least one A and at least one B.

The expressions “a first”, “a second”, “the first” “the second” or thelike used in various embodiments may use various components irrespectiveof order and/or importance, and does not limit the correspondingcomponents. The expressions may be used to distinguish one componentfrom another component. For example, a first user device and a seconduser device may represent mutually different user devices, regardless oforder or importance. For example, a first component may be named asecond component without departing from the scope of right of thepresent disclosure. Likely, even a second component may be namedinterchangeably with a first component.

When it is mentioned that any component (e.g., a first component) is“(operatively or communicatively) coupled with/to” another component(e.g., a second component) or is “connected to”, it should be understoodthat the any component may be directly coupled to the another component,or be coupled through a further component (e.g., a third component). Onthe other hand, when it is mentioned that some component (e.g., a firstcomponent) is “directly coupled to” another component (e.g., a secondcomponent) or is “directly connected to”, it may be understood that afurther component (e.g., a third component) does not exist between thesome component and the another component.

The expression “configured (or set) to˜” used in the present documentmay be used interchangeably with, for example, “suitable for˜”, “havingthe capacity to˜”, “designed to˜”, “adapted to˜”, “made to˜” or “capableof˜” according to context. The term “configured (or set) to˜” may notnecessarily mean only “specifically designed to” in hardware. Instead,in some context, the expression “device configured to˜” may mean thatthe device is “capable of ˜” together with other devices or parts. Forexample, the phrase “processor configured (or set) to perform A, B, andC” may mean an exclusive processor (e.g., embedded processor) forperforming a corresponding operation, or a generic-purpose processor(e.g., a CPU or an application processor) capable of performingcorresponding operations by executing one or more software programsstored in a memory device.

The terms used in the present document are used to just explain aspecific embodiment, and may not intend to limit the scope of anotherembodiment. The expression of a singular form may include the expressionof a plural form unless otherwise dictating clearly in context. All theterms used herein including the technological or scientific terms mayhave the same meanings as those generally understood by a person havingordinary skill in the art of the present disclosure. The terms definedin a generally used dictionary may be construed as having the same orsimilar meanings as the contextual meanings of a related technology, andare not construed as having ideal or excessively formal meanings unlessdefined clearly in the present document. According to cases, even theterm defined in the present document may not be construed as excludingembodiments of the present document.

Various embodiments of the present disclosure are explained below inmore detail with reference to the drawings.

FIG. 1A illustrates a perspective view of a wireless charging device ofvarious embodiments of the present disclosure. FIG. 1B illustrates aperspective view of the wireless charging device of various embodimentsof the present disclosure. FIG. 1C illustrates a perspective view of thewireless charging device of various embodiments of the presentdisclosure.

According to various embodiments, as illustrated in FIG. 1A, FIG. 1B andFIG. 1C, the wireless charging device 100 may include a first housing103, a pad 101, a second housing 109, a third housing 105, a guide 107and a support unit 111. The first housing 103, the pad 101, the secondhousing 109, the third housing 105, the guide 107 and the support unit111 may form an appearance of the wireless charging device 100. Thewireless charging device 100 may perform wireless charging for anexternal device needing charging. In an arrow direction illustrated inFIG. 1A, the external device needing the charging may be safely mountedin the wireless charging device 100.

According to various embodiments, the first housing 103 may protectparts of the wireless charging device 100. The first housing 103 mayform a front surface of the wireless charging device 100. The firsthousing 103 may be a support body (support structure) of injectionmaterials which forms an appearance design of the wireless chargingdevice 100. A surface of the first housing 103 may include a pluralityof holes 103 a. Through the holes 103 a, an air channel may be formed ina direction of the wireless charging device 100. This will be describedlater in detail.

According to various embodiments, the first housing 103 may beconfigured to safely mount an external device for receiving powerapplied. For example, the first housing 103 may include a safe mountingunit 103 b that is configured to safely mount the external device. Thesafe mounting unit 103 b may be a construction of having a given areaand protruding in a direction of the first housing 103. The wirelesscharging device 100 may safely mount the external device in the safemounting unit 103 b, thereby performing wireless charging for theexternal device.

According to various embodiments, the pad 101 may be mounted in thefirst housing 103. For example, the first housing 103 may include agroove, and the pad 101 may be mounted in this groove. The pad 101 maybe arranged such that an outer surface of the pad 101 is exposed at anupper surface of the first housing 103. The pad 101 may be configured togenerate a frictional force with the external device placed in the firsthousing 103. For example, the pad 101 may include rubber materials,thereby generating a frictional force with the external device, toprevent the movement of the external device. The pad 101 may beconfigured, for example, in a ring shape.

According to various embodiments, the second housing 109 may protectparts of the wireless charging device 100. The second housing 109 mayform a rear surface of the wireless charging device 100. The secondhousing 109 may be a support body (support structure) of injectionmaterials that forms an appearance design of the wireless chargingdevice 100. A surface of the second housing 109 may include a pluralityof holes 109 a. Through the holes 109 a, an air channel may be formed ina direction of the wireless charging device 100.

According to various embodiments, the third housing 105 may be arrangedbetween the first housing 103 and the second housing 109. The thirdhousing 105 may protect parts of the wireless charging device 100. Thethird housing 105 may form a side surface of the wireless chargingdevice 100. The third housing 105 may be a support body (supportstructure) of injection materials that forms an appearance design of thewireless charging device 100. A surface of the third housing 105 mayinclude a plurality of holes 105 a. Through the holes 105 a, an airchannel may be formed in a direction of the wireless charging device100.

According to various embodiments, the guide 107 may be configured to bemovable at a side surface of the wireless charging device 100. The guide107 may move in a horizontal direction to fit the size of the externaldevice. The guide 107 may get distant from the first housing 103 or getclose. The guide 107 may fix the external device that is safely mountedin the first housing 103. The guide 107 may apply a pressure to theexternal device, to prevent the movement of the external device.

According to various embodiments, the support unit 111 may form a rearsurface of the wireless charging device 100. The support unit 111 mayget in contact with an installation surface that is to install thewireless charging device 100. The support unit 111 may include injectionmaterials, metals or the like that form an appearance design of thewireless charging device 100. A surface of the support unit 111 may beflat to be fixed to the installation surface. In response to thewireless charging device 100 being installed in a vehicle, wirelesscharging may be smoothly performed for the external device through thesupport unit 111 in spite of the occurrence of vibration or shakingduring vehicle running.

FIG. 1D illustrates an example view showing a state in which an externaldevice is mounted in a wireless charging device of various embodimentsof the present disclosure. FIG. 1E illustrates an example view showingthe state in which the external device is mounted in the wirelesscharging device of various embodiments of the present disclosure. FIG.1F illustrates an example view showing the state in which the externaldevice is mounted in the wireless charging device of various embodimentsof the present disclosure. FIG. 1G illustrates an example view showing astate in which the external device is mounted in the wireless chargingdevice of various embodiments of the present disclosure. FIG. 1Hillustrates an example view showing the state in which the externaldevice is mounted in the wireless charging device of various embodimentsof the present disclosure.

According to various embodiments, as illustrated in FIG. 1D, FIG. 1E,FIG. 1F, FIG. 1G and FIG. 1H, the external device 10 may be mounted inthe wireless charging device 100. As explained earlier, the externaldevice 10 may be safely mounted in the first housing 103 of the wirelesscharging device 100. For example, the external device 10 may beinstalled on the safe mounting unit 103 b of the first housing 103.

In various embodiments, as illustrated in FIG. 1E and FIG. 1F, the guide107 of the wireless charging device 100 may secure a space forinstalling the external device 10 through movement. The guide 107 maymove in the horizontal direction, thereby forming the space such thatthe external device 10 may be safely mounted in the first housing 103.The guide 107 may move in the direction of getting distant from thefirst housing 103, to secure the space.

In various embodiments, as illustrated in FIG. 1G and FIG. 1H, the guide107 may fix the external device 10 through movement. The guide 107 maymove in the horizontal direction, thereby getting in contact with theexternal device 10. The guide 107 may move in the direction of gettingclose to the first housing 103, to apply a pressure to the externaldevice 10. The guide 107 may prevent the movement of the external device10 through a contact with the external device 10. In response to thewireless charging device 100 being installed in a vehicle, wirelesscharging may be smoothly performed for the external device 10 throughthe guide 107 in spite of the occurrence of vibration or shaking duringvehicle running.

FIG. 2A and FIG. 2B illustrate exploded perspective views of a wirelesscharging device of various embodiments.

According to various embodiments, as illustrated in FIG. 2A and FIG. 2B,the wireless charging device 100 may include a pad 201, a first housing203, a third housing 205, a coil unit 207, a shielding member 209, abracket 211, a fan 213, a printed board assembly (PBA) 215, a firstplate 217, a guide 219, a second plate 221, a gear 223, a mount 225, asecond housing 227 and the like. Below, a detailed description of aconstruction being the same as or similar with the above-describedconstruction may be omitted.

According to various embodiments, the pad 201 may include at least oneprotrusion 201 a in a surface of the pad 201. The protrusion 201 a maybe configured to protrude from the surface of the pad 201. Theprotrusion 201 a may be formed to protrude in a first direction (D1) ofthe drawing from the pad 201. In response to an external device (drawingsymbol 10 of FIG. 1) being safely mounted in the first housing 203, theprotrusion 201 a may provide a space between the external device 101 andthe first housing 203. The protrusion 201 a may be such that theexternal device 10 may be installed at a given interval apart from thefirst housing 203. In various embodiments, by the protrusion 201 a, thespace may be provided between the external device 10 and the firsthousing 203 and, through this space, air may be introduced into the hole203 a of the first hosing 203. Through the protrusion 201 a, air may beintroduced in a second direction (D2) of the drawing in the wirelesscharging device 100. Through the protrusion 201 a, an air channel may beformed in the second direction (D2).

The protrusion 201 a may have a diameter of, for example, 0.1 mm to 0.4mm. In response to the protrusion 201 a being included in plural in thepad 201, the plurality of protrusions 201 a may be arranged at a giveninterval apart. The protrusion 201 a may be formed in various numbersand various shapes.

According to various embodiments, the first housing 203 may include afirst surface 203 b facing the first direction (D1), and a secondsurface 203 c facing the second direction (D2) being opposite to thefirst direction (D1). The first housing 203 may include at least onehole 203 a which passes through the first surface 203 b and the secondsurface 203 c. The hole 203 a may form a passage through which externalair may be introduced into the wireless charging device 100. The hole203 a may form an air channel in the second direction (D2). That is, theair introduced to a front surface of the wireless charging device 100through the hole 203 a may be forwarded to the fan 213.

According to various embodiments, the third housing 205 may be arrangedon the second surface 203 c of the first housing 203. The third housing205 may be arranged on the second surface 203 c of the first housing 203in the second direction (D2). The third housing 205 may be arrangedbetween the first housing 203 and the second housing 227.

According to various embodiments, the third housing 205 may include afirst surface 205 d facing the first direction (D1), and a secondsurface 205 e facing the second direction (D2). The third housing 205may include the hole 205 a which passes through the first surface 205 dand the second surface 205 e. The hole 205 a may be provided in thefirst direction (D1) or the second direction (D2). The hole 205 a mayform a passage through which external air may be introduced into thewireless charging device 100. The hole 205 a may form a passage of airwhich is introduced from the hole 203 a of the first housing 203. Thehole 205 a may form an air channel in the second direction (D2). Thatis, the air introduced to the front surface of the wireless chargingdevice 100 through the hole 205 a may be forwarded to the fan 213.

According to various embodiments, the third housing 205 may include athird surface 205 f facing a third direction (D3) which intersects withthe first direction (D1) and the second direction (D2). The thirdhousing 205 may include a fourth surface 205 g facing a fourth direction(D4) which intersects with the first direction (D1), the seconddirection (D2) and the third direction (D3).

According to various embodiments, the third housing 205 may include atleast one hole 205 b arranged in the third surface 205 f. The hole 205 bmay be provided in the third direction (D3). The hole 205 b may form apassage through which external air may be introduced into the wirelesscharging device 100. The hole 205 b may form an air channel in the thirddirection (D3). That is, the air introduced to a side surface of thewireless charging device 100 through the hole 205 b may be forwarded tothe fan 213.

According to various embodiments, the third housing 205 may include atleast one hole 205 c arranged in the fourth surface 205 g. The hole 205c may be provided in the fourth direction (D4). The hole 205 c may forma passage through which air introduced into the wireless charging device100 is discharged. For example, the air introduced through the airchannel formed in the first direction (D1), the second direction (D2) orthe third direction (D3) may be discharged out through the hole 205 c.The air introduced into the wireless charging device 100 may becirculated through the fan 213 and then be discharged through the hole205 c together with a heat generated in the coil unit 207, the printedboard assembly 215 or the like.

According to various embodiments, the coil unit 207 may be arrangedbetween the first housing 203 and the second housing 227. The coil unit207 may be configured to transmit power to the external device. The coilunit 207 may be a transmission coil. The coil unit 207 may forward powerto a reception coil of the external device by using an electromagneticinduction phenomenon. The coil unit 207 may be a circular shape, arectangular shape or a ring shape. The coil unit 207 may generate a heatat working.

According to various embodiments, the shielding member 209 may bearranged adjacent to the coil unit 207. The shielding member 209 may bearranged beneath the coil unit 207. The shielding member 209 may protectother electrical objects (for example, the fan 213, the printed boardassembly 215 or the like) from an electromagnetic field which isgenerated in response to the coil unit 207 transmitting power, andenhance the efficiency of wireless power transmission. The shieldingmember 209 may be formed of, for example, a ferrite sheet.

According to various embodiments, the shielding member 209 may include ahole 209 a. The hole 209 a may form an air channel together with thehole 203 a of the first housing 203, the hole 205 a of the third housingor the hole 205 b of the third housing. That is, the hole 209 a may formthe air channel in the second direction (D2). That is, air introduced tothe front surface of the wireless charging device 100 through the hole209 a may be forwarded to the fan 213.

According to various embodiments, the bracket 211 may support the coilunit 207 and the shielding member 209. According to various embodiments,the bracket 211 may support the fan 213. The bracket 211 may be aninternal injection structure capable of supporting various structures.The bracket 211 may include a hole 211 a which is provided in the firstdirection (D1) or the second direction (D2). The bracket 211 may includea hole 211 b which is provided in the fourth direction (D4). Through theholes 211 a and 211 b of the bracket 211, a flow of air through the fan213 may be led. For example, through the hole 211 a of the bracket 211,an air channel may be formed in the second direction (D2). That is, theair introduced to the front surface of the wireless charging device 100through the hole 211 a may be forwarded to the fan 213.

According to various embodiments, the hole 211 b of the bracket 211 mayform a passage through which air introduced into the wireless chargingdevice 100 is discharged. For example, the hole 211 b may discharge outthe air introduced through the air channel formed in the first direction(D1), the second direction (D2) or the third direction (D3). The airintroduced into the wireless charging device 100 may be circulatedthrough the fan 213 and then be discharged out through the hole 211 btogether with a heat generated in the coil unit 207, the printed boardassembly 215 or the like.

According to various embodiments, the fan 213 may be arranged betweenthe coil unit 207 and the printed board assembly 215. The fan 213 may beconfigured to rotate. The fan 213 may make a flow of air between thecoil unit 207 and the printed board assembly 215. The fan 213 maygenerate the circulation of air. For example, the fan 213 may be anairflow fan.

According to various embodiments, the fan 213 may be installed to facethe coil unit 207 in an up/down laminate structure. The fan 213 may bemounted to face the printed board assembly 215 in an up/down laminatestructure. The fan 213 may be arranged to be at a given interval witheach of the shielding member 209 and the printed board assembly 215.Through this interval, an air movement path may be formed. Through thispath, air including a heat generated by the coil unit 207 or the printedboard assembly 215 may be discharged out by the fan 213.

According to various embodiments, the printed board assembly 215 may bearranged to face at a given interval with the fan 213. The printed boardassembly 215 may include a power supply device and a wireless chargingcircuit. The power supply device of various embodiments may supply apower source to the wireless charging circuit. The wireless chargingcircuit of various embodiments may include at least some of an I/F, acontrol circuit, an I/F control, a DC-AC inverter. The I/F of variousembodiments may be a connection path connected with the power supplydevice. The control circuit of various embodiments may control wirelesscharging. The I/F control of various embodiments may be a communicationI/F for checking support or non-support of voltage change of the powersupply device. The DC-AC inverter of various embodiments may switch andchange DC power of the power supply device into AC power.

According to various embodiments, the first plate 217 may be arranged inthe second direction (D2) from the printed board assembly 215. The firstplate 217 may support the printed board assembly 215. The first plate217 may be a support body (support structure) of injection materials.

According to various embodiments, the guide 219 may be arranged betweenthe first housing 203 and the second housing 227. The guide 219 mayinclude injection materials. The guide 219 may include a guide arm 219 awhich is extended in the first direction (D1). The guide arm 219 a mayfix the external device. The guide arm 219 a may get in contact with theexternal device.

According to various embodiments, the guide 219 may be movable in thethird direction (D3). For example, the guide 219 may include a firstguide 219-1 and a second guide 219-2. The first guide 219-1 and thesecond guide 219-2 may be each configured to be movable in the thirddirection (D3). The first guide 219-1 and the second guide 219-2 maymove to get close to each other. Or the first guide 219-1 and the secondguide 219-2 may move to get distant from each other.

According to various embodiments, the guide 219 may include a hole 219b. The hole 219 b may form an air channel in the first direction (D1).The hole 219 b may form a passage through which external air may beintroduced into the wireless charging device 100. The air introduced inthe first direction (D1) through the hole 219 b may be forwarded to thefan 213. That is, the air introduced to a rear surface of the wirelesscharging device 100 through the hole 219 b may be forwarded to the fan213.

According to various embodiments, the second plate 221 may be arrangedin the second direction (D2) from the guide 219. The first plate 217 maysupport the guide 219. The first plate 217 may be a support body(support structure) of injection materials.

The gear 223 and the mount 225 may be arranged between the first housing203 and the second housing 227. The gear 223 and the mount 225 may becombined with the support unit 111 explained earlier in FIG. 1. The gear223 and the mount 225 may insert and fix the support unit 111.

The second housing 227 may be arranged on the second surface 203 c ofthe first housing 203. The second housing 227 may be arranged on thesecond surface 203 c of the first housing 203 in the second direction(D2). The second housing 227 may include at least one hole 227 a. Thehole 227 a may form an air channel in the first direction (D1). The hole227 a may form a passage through which external air may be introducedinto the wireless charging device 100. That is, through the hole 227 aof the second housing 227, the external air may be introduced into thewireless charging device 100. The air introduced through the hole 227 ain the first direction (D1) may be forwarded to the fan 213. That is,the air introduced to the rear surface of the wireless charging device100 through the hole 227 a may be forwarded to the fan 213. Also, thehole 227 a may form a passage which discharges out the air introducedinto the wireless charging device 100. The air introduced in variousdirections may be circulated through the fan 213, thereby beingdischarged out through the hole 227 a together with a heat generated inthe coil unit 207, the printed board assembly 215 or the like.

FIG. 3A and FIG. 3B illustrate sectional views of a wireless chargingdevice of various embodiments. FIG. 3A and FIG. 3B illustrate sectionalviews viewed in the third direction (D3) in FIG. 2A and FIG. 2B.

According to various embodiments, as illustrated in FIG. 3A and FIG. 3B,the wireless charging device 100 may secure the air channels which areformed in various directions. For example, the wireless charging device100 may secure the air channel formed in the second direction (D2). Thatis, as explained earlier, air may be introduced in the second direction(D2) of the wireless charging device 100 through the respective holesformed in the first direction (D1) or the second direction (D2) in thefirst housing 203, the third housing 205, the shielding member 209, thebracket 211 and the like. The air introduced from the front surface ofthe wireless charging device 100 may be forwarded to the fan 213.

The air introduced into the wireless charging device 100 may bedischarged out through the hole 205 c provided in the fourth direction(D4) in the third housing 205. Accordingly, the air introduced in thesecond direction (D2) may be circulated through the fan 213, therebybeing discharged in the fourth direction (D4) together with a heatgenerated in the coil unit 207, the printed board assembly 215 or thelike. That is, through the air channel of the second direction (D2), aheat temperature of the coil unit 207 or the printed board assembly 215may be effectively decreased, and a cooling efficiency may be improved.

According to various embodiments, the air channel may be formed in thethird direction (D3) of the wireless charging device 100. That is, asexplained earlier, the wireless charging device 100 may introduce air inthe third direction (D3) through the hole provided in the thirddirection (D3) in the third housing 205. Air may be introduced from aside surface of the wireless charging device 100 and be forwarded to thefan 213.

The air introduced into the wireless charging device 100 may bedischarged out through the hole 205 c provided in the fourth direction(D4) in the third housing 205. Accordingly, air introduced in the thirddirection (D3) may be circulated through the fan 213, thereby beingdischarged in the fourth direction (D4) together with a heat generatedin the coil unit 207, the printed board assembly 215 or the like. Thatis, through the air channel of the third direction (D3), a heattemperature of the coil unit 207 or the printed board assembly 215 maybe effectively decreased, and a cooling efficiency may be improved.

According to various embodiments, the wireless charging device 100 maysecure the air channel that is formed in the first direction (D1). Thatis, as explained earlier, the wireless charging device 100 may introduceair in the first direction (D1) through the hole that is provided in thefirst direction (D1) or the second direction (D2) in the second housing227. The wireless charging device 100 may introduce air in the firstdirection (D1) through the hole provided in the first direction (D1) orthe second direction (D2) in the guide 219. The air introduced from arear surface of the wireless charging device 100 may be forwarded to thefan 213.

The air introduced into the wireless charging device 100 may bedischarged out through the hole 205 c that is provided in the fourthdirection (D4) in the third housing 205. Accordingly, the air introducedin the first direction (D1) may be circulated through the fan 213,thereby being discharged in the fourth direction (D4) together with aheat generated in the coil unit 207, the printed board assembly 215 orthe like. That is, through the air channel of the first direction (D1),a heat temperature of the coil unit 207 or the printed board assembly215 may be effectively decreased, and a cooling efficiency may beimproved.

FIG. 4A, FIG. 4B and FIG. 4C illustrate front views of shielding membersincluded in a wireless charging device of various embodiments.

According to various embodiments, as illustrated in FIG. 4A, theshielding member 209 may include a plurality of holes 209 a. The hole209 a may include a first diameter (R1). The first diameter (R1) of thehole 209 a may, for example, be greater than or be equal to 2 pie (π)and be less than 4 pie (π). The plurality of holes 209 a may be arrangedat a first pitch (P1).

According to various embodiments, as illustrated in FIG. 4B, theshielding member 209 may include a plurality of holes 209 a. The hole209 a may include a second diameter (R2). The second diameter (R2) maybe greater than the first diameter (R1). The second diameter (R2) of thehole 209 a may, for example, be greater than or be equal to 4 pie (π)and be less than 6 pie (π). The plurality of holes 209 a may be arrangedat a second pitch (P2). The second pitch (P2) may be greater than or beequal to the first pitch (P1).

According to various embodiments, as illustrated in FIG. 4C, theshielding member 209 may include a plurality of holes 209 a. The hole209 a may include a third diameter (R3). The third diameter (R3) may begreater than the second diameter (R2). The third diameter (R3) of thehole 209 a may, for example, be greater than or be equal to 6 pie (π)and be less than 8 pie (π). The plurality of holes 209 a may be arrangedat a third pitch (P3). The third pitch (P3) may be greater than or beequal to the second pitch (P2).

According to various embodiments, the shielding member 209 included inthe wireless charging device 100 may include the plurality of holes 209a, thereby decreasing a temperature of the front surface of the wirelesscharging device 100 and a temperature of an internal part.

FIG. 5A illustrates a perspective view of a bracket included in awireless charging device of various embodiments.

According to various embodiments, as illustrated in FIG. 5A, the bracket211 may include the hole 211 b provided in the fourth direction (D4).The bracket 211 in which the hole 211 b is arranged may have a firstthickness (T1). The bracket 211 having the hole 211 b may have the firstthickness (T1). The first thickness (T1) may be smaller than a thicknessof the bracket 211 which is not adjacent to the hole 211 b. A thicknessof the bracket 211 adjacent to the hole 211 b may be formed thinner thanthe thickness of the bracket 211 not adjacent, thereby securing the sizeof the hole 211 b.

FIG. 5B illustrates a sectional perspective view showing an installationstructure of a bracket and a fan included in a wireless charging deviceof various embodiments.

According to various embodiments, as illustrated in FIG. 5B, the bracket211 may support the fan 213. The fan 213 may be installed within thebracket 211. The hole 211 b of the bracket 211 may form a passage ofdischarging introduced air through the rotation of the fan 213. The hole211 b may discharge out the air which is introduced through the airchannels formed in various directions. The hole 211 b may enable theintroduced air to, after being circulated through the fan 213, bedischarged together with a heat generated in a wireless charging deviceinternal part. Through the hole 211 b, the introduced air may bedischarged in the fourth direction (D4).

FIG. 6A illustrates a perspective view of a guide included in a wirelesscharging device of various embodiments.

According to various embodiments, as illustrated in FIG. 6A, the guide219 may include the guide arm 219 a which is extended in the firstdirection (D1). The guide arm 219 a may fix an external device. Theguide arm 219 a may get in contact with the external device.

According to various embodiments, the guide 219 may include the hole 219b provided in the first direction (D1) or the second direction (D2).Through the hole 219 b, air may be introduced in the first direction(D1) of the wireless charging device. That is, the air may be introducedfrom a rear surface of the wireless charging device through the hole 219b and be forwarded to the fan 213. The hole 219 b may have varioussizes, shapes or arrangements.

FIG. 6B illustrates a sectional perspective view showing an installationstructure of a guide included in a wireless charging device of variousembodiments.

According to various embodiments, as illustrated in FIG. 6B, an airchannel may be formed in the first direction (D1) of the wirelesscharging device through the hole 219 b of the guide 219 explainedearlier. Through the hole 219 b of the guide 219, air may be introducedfrom the rear surface of the wireless charging device. That is, the airmay be introduced (In) in an arrow direction shown in the drawing.

FIG. 6C illustrates a sectional view showing an installation structureof a guide included in a wireless charging device of variousembodiments.

According to various embodiments, the guide 219 may be configured to bemovable in the third direction (D3) of the wireless charging device. Theguide 219 may move to get distant from the first housing 203 or getclose. The guide 219 may move according to the size of the externaldevice that is safely mounted in the first housing 203.

According to various embodiments, the guide 219 may include portionshaving mutually different thicknesses. For example, the guide 219 mayinclude a portion having a second thickness (T2) in a portion extendedin the third direction (D3), and a portion having a third thickness (T3)thicker than the second thickness (T2). In the portion extended in thethird direction (D3) of the guide 219, the portion close to the thirdhousing 205 may have the second thickness (T2), and the portion distantfrom the third housing 205 may have the third thickness (T3). Inresponse to the guide 219 being arranged to get close to the thirdhousing 205 to fix the external device, a space may be provided betweenthe portion having the second thickness (t2) thinner than the thirdthickness (T3) and the third housing 205. Through this, air introductionthrough the space between the guide 219 and the third housing 205 may bemade smooth.

According to various embodiments, a wireless charging device may includea first housing, which includes a first surface facing a first directionand a second surface facing a second direction opposite to the firstdirection, and includes at least one hole; a second housing arrangedalong the second direction on the second surface of the first housing; acoil unit arranged between the first housing and the second housing, andconfigured to transmit power to an external device; a shielding memberarranged adjacent to the coil unit, and including at least one hole; anda fan arranged adjacent to the coil unit and configured to rotate.

According to various embodiments, the fan may receive external airthrough the hole of the first housing and the hole of the shieldingmember.

According to various embodiments, a pad may be further arranged on thefirst surface of the first housing, and the pad may include at least oneprotrusion protruded in the first direction.

According to various embodiments, the first housing may be configured tosafely mount the external device on the first surface.

According to various embodiments, the at least one protrusion mayprovide a space between the first surface of the first housing and theexternal device.

According to various embodiments, it may further include a third housingarranged between the first housing and the second housing, and the thirdhousing may include a first surface facing the first direction, a secondsurface facing the second direction, and a hole passing through thefirst surface and the second surface.

According to various embodiments, the third housing may include a thirdsurface facing a third direction which intersects with the firstdirection and the second direction, and include at least one holeprovided in the third surface.

According to various embodiments, the fan may receive external airthrough the at least one hole provided in the third surface.

According to various embodiments, the third housing may include a fourthsurface facing a fourth direction which intersects with the firstdirection, the second direction and the third direction, and include atleast one hole provided in the fourth surface.

According to various embodiments, the at least one hole provided in thefourth surface may form an air channel for discharging out airintroduced into the wireless charging device.

According to various embodiments, it may further include a guidearranged between the first housing and the second housing, andconfigured to support the external device.

According to various embodiments, the guide may be configured to move inthe third direction which intersects with the first direction and thesecond direction.

According to various embodiments, the guide may further include a guidearm extended in the first direction.

According to various embodiments, the guide may include at least onehole, and air may be introduced through the hole of the guide and beforwarded to the fan.

According to various embodiments, the guide may include at least any oneof portions of different thicknesses.

According to various embodiments, a portion close to the first housingin the guide may be smaller in thickness than a portion distant from thefirst housing.

According to various embodiments, it may further include a bracket whichsupports the coil unit and the shielding member, and the bracket mayinclude a hole provided in the second direction.

According to various embodiments, the fan may receive external airthrough the hole provided in the second direction in the bracket.

According to various embodiments, the bracket may include a holeprovided in the fourth direction.

According to various embodiments, the hole provided in the fourthdirection may form an air channel for discharging out air introducedinto the wireless charging device.

Various embodiments of the present disclosure disclosed in the presentspecification and drawings are to just suggest specific examples so asto easily explain technology content of the present disclosure and helpthe understanding of the present disclosure, and do not intend to limitthe scope of the present disclosure. Accordingly, the scope of thepresent disclosure should be construed as including all modified orchanged forms drawn on the basis of the technological spirit of thepresent disclosure besides the embodiments disclosed herein.

1. A wireless charging device comprising: a first housing, whichcomprises a first surface facing a first direction and a second surfacefacing a second direction opposite to the first direction, and includesat least one hole; a second housing arranged along the second directionon the second surface of the first housing; a coil unit arranged betweenthe first housing and the second housing, and configured to transmitpower to an external device; a shielding member arranged adjacent to thecoil unit, and comprising at least one hole; and a fan arranged adjacentto the coil unit and configured to rotate.
 2. The wireless chargingdevice of claim 1, wherein the fan receives external air through the atleast one hole of the first housing and the at least one hole of theshielding member.
 3. The wireless charging device of claim 1, wherein apad is further arranged on the first surface of the first housing, andthe pad comprises at least one protrusion protruded in the firstdirection.
 4. The wireless charging device of claim 3, wherein the firsthousing is configured to safely mount the external device on the firstsurface.
 5. The wireless charging device of claim 4, wherein the atleast one protrusion provides a space between the first surface of thefirst housing and the external device.
 6. The wireless charging deviceof claim 1, further comprising a third housing arranged between thefirst housing and the second housing, wherein the third housingcomprises a first surface facing the first direction, a second surfacefacing the second direction, and a hole passing through the firstsurface and the second surface.
 7. The wireless charging device of claim6, wherein the third housing comprises a third surface facing a thirddirection which intersects with the first direction and the seconddirection, and comprises at least one hole provided in the thirdsurface.
 8. The wireless charging device of claim 7, wherein the fanreceives external air through the at least one hole provided in thethird surface.
 9. The wireless charging device of claim 7, wherein thethird housing comprises a fourth surface facing a fourth direction whichintersects with the first direction, the second direction and the thirddirection, and comprises at least one hole provided in the fourthsurface.
 10. The wireless charging device of claim 9, wherein the atleast one hole provided in the fourth surface forms an air channel fordischarging out air introduced into the wireless charging device. 11.The wireless charging device of claim 1, further comprising a guidearranged between the first housing and the second housing, andconfigured to support the external device.
 12. The wireless chargingdevice of claim 11, wherein the guide comprises at least one hole, andair is introduced through the at least one hole of the guide and isforwarded to the fan.
 13. The wireless charging device of claim 1,further comprising a bracket which supports the coil unit and theshielding member, wherein the bracket comprises a hole provided in thesecond direction.
 14. The wireless charging device of claim 13, whereinthe fan receives external air through the hole provided in the seconddirection in the bracket.
 15. The wireless charging device of claim 13,wherein the bracket comprises a hole provided in a fourth direction. 16.The wireless charging device of claim 15, wherein the hole provided inthe fourth direction forms an air channel for discharging out airintroduced into the wireless charging device.
 17. The wireless chargingdevice of claim 11, wherein the guide is configured to move in a thirddirection which intersects with the first direction and the seconddirection.
 18. The wireless charging device of claim 11, wherein theguide includes a guide arm extended in the first direction.
 19. Thewireless charging device of claim 11, wherein the guide includes atleast any one of portions of different thicknesses.
 20. The wirelesscharging device of claim 11, wherein, a portion close to the firsthousing in the guide is smaller in thickness than a portion distant fromthe first housing.